Can't we all just get along? Adam Lambert is one of the many celebrities who got into a bar fight in 2011.

On Thursday, Lambert was arrested after getting into a fight with his boyfriend, Sauli Koskinen, at a gay bar in Finland.

According to the Hollywood Reporter, Lambert and Koskinen got into a scuffle outside of DTM (Don't Tell Mama) in Helsinki around 4 a.m. after a dispute, which ultimately led the couple to be arrested.

Reports said Lambert got physical with people trying to break up the fight and spent several hours in prison as police investigated four possible assault offenses.

On Thursday, after he was reportedly released from prison, Lambert tweeted an equation which pretty much sums up his night.

Jetlag+Vodka=blackout. Us÷blackout=irrational confusion. jail+guilt+press=lesson learned, he tweeted.

And in case you're wondering how the couple made out following the fight, Lambert tweeted, Sauli+Adam+hangover burgers=laughing bout it. :).

Big Brother star Koskinen also posted a comment about the incident on his personal blog, Publicity is not easy, but also celebrities are just human. Love is not easy either, but it lasts forever!

2011 was a fighting year for celebrities who visited drinking holes; Shia LeBeouf was in multiple scuffles, mostly instigated by himself, while others were innocent victims like Gavin DeGraw.

View the slideshow to see the 13 memorable celebrity bar fights in 2011.

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Gavin DeGraw
Gavin DeGraw on Dancing With the Stars Reuters
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Cast member Shia LaBeouf arrives for the premiere of quotTransformers Dark of The Moonquot in Times Square in New York
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Ed Westwick
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Cast member Sean Bean answers a question, as co-star Emilia Clarke watches, at the HBO panel for the television series quotGame of Thronesquot during the Television Critics Association winter press tour in Pasadena, California January 7, 2011.
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Bristol Palin
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Johnny Knoxville
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Paz de la Huerta
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Cast members of the television program Jersey Shore arrive at the 2011 MTV Video Music Awards in Los Angeles
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